EMF Views

EMF Views is an Eclipse plugin that brings the concept of database views to the modeling world

JTL

JTL is an EMF-based tool that allows you to design and manipulate models, maintain consistency and synchronize software artifacts, keep traceability during design.

MATERA2

Model-based Monitoring from Åbo Akademi (MBMÅA) tool
Model-based Performance Testing (MBPeT) tool

Modelio

The open source modeling environment.

Modelio Constellation

Constellation organizes and manages collaborative (distributed) World Wide Modeling projects,